Holidaymakers fail to spot the large hammerhead shark right behind them

What’s that fast-moving dark shadow behind those two swimmers? Oh, just a massive hammerhead shark.

This video which shows a shark hunting a stingray just behind two unsuspecting holidaymakers on a beach in Florida will have you looking over your shoulder the next time you go for a relaxing dip in the sea.

All the clip needs is the da-dum..da-dum..soundtrack behind it.

The footage was filmed earlier this week from a penthouse at the Silver Beach Towers resort in Destin, Florida and those filming can be heard shouting at the holidaymakers to get out of the water. Finally, the couple spot the shark and make a pretty sharp exit.

Luckily for them, this hunter was only interested in the hapless stingray. Plus, of the 11 known species of hammerhead shark, apparently only three are considered potentially dangerous to humans.